<template>
    <div>
        <el-button type="primary" @click="updateData">更新数据</el-button>
    </div>
    <div>
        <div id="main" style="width: 600px; height: 400px;"></div>
    </div>
</template>

<script setup lang="ts">
import * as echarts from 'echarts';
import { onMounted, ref } from 'vue'

var myChart = null;



</script>

<style scoped>

</style>